Apparatus for making bisulfite liquor.



"PAIENTED MAR. 12, 1907. J. G. MURRAY.

APPARATUS FOR MAKING BISULFITE LIQUOR.

' APPLIOA TIONIILBD 0UT.16, 1906.

' BAY, a citizen of the United States of Amer- .ica, and a resident of Bangor, in the county tatin vented certain new ployed tion, usually jis established between the UNITED STATES PATENT oi F oE; JoiiN CAMPBELL M PL AY, 0F BANGOR, 'MAINE, ASSIGNOR TO GEORGE C. CRAFTS-,-OF BANGOR,

MAINE, AN D ONE-THIRD TOVGEORGE W. FORTIER, OF ORONO, MAINE. v

APGPARATUSHFOR MAKING BISULFITE L Quon.

No. 846,499. Specification of Letters Patent. Patented fiarch 12,1907.

Application filed 0mm 16,1906. seiiii in. 339,243.

liquid to flow in a sinuous course with the gas, constitutes a verg important phase of my invention and pro uces a iece concern:

To all whom it TIMI/y JOHN CAMPBELL MURQ Be it known that I,

0 Maine, have inand useful Improvements .in Apparatus for Making Bisulfite Li nor, of which the following is a full, clear,

anc exact description. i

This invention relates to improvements in an apparatus or means for the 'manufacture or 1production of bisulfite liquor, or paperma ers acid, which is used in'the manufaeture of sulfite pulp and also employed in the manufacture of sulfate pulp.

This bisu-lfite liquor or acid, as well known, consists of lime-water (or milk of lime, as it is sometimes termed) thoroughly saturated or im regnated'with' sulfur-dioxid gas (the coole fumes of burnt sulfur.)

w The a paratus heretofore commonly em: or the production of the bisulfite has, been oneof complicated construcembodying series of agitators, lead and bronze conduits and parts, necessivery greatcost in the making; and the o jectof. his invention is to simplify the methodof making the li uor and in providing for the manufacture t ereof an'apparatus 'of new and simplified character and much less expensive than has heretofore been necessary. g The invention consists in the provision of an absorption apparatus of the tower and baflie-plate type of marked simplicity and of Penobscot and State construction and efficient in operation. to Besides the, ease with which I the tower embodying these features may be constructed a further advantage is the elimination of any special support for maintaining the reservoir in an elevated position. ,One of the main objects of said reservoir is to provide means for absorbing such of the Sulfur-dioxid as admitted at thebottom of the tower as is not taken upinjits. rise through the descends ing lime-water, and to this'en erably not allowed to escape freely a ter reach in the upper end of the series of bafiies, but is ed by'suction throu into the body of liqui in the reservoir.

This being the general character of the apparatus, it is the aim of the'invention to asso-, ciate such features in a unitary piece of a pa- -ratus in the simplest and strongest fas on possible, and-with this end in .view the tower consists of a continuous tubular structure closed at bottom and top and provided with an imp'erfo'rate partition, completelg cutting off the reservoir at the top from t e major 'ortion of the interior, and with staggered partition and extending to adjacent the bottom of the tower. v

One of the features of novelty is the provision of an upright wall extending across the top baflle-plate parallel to-the free edge thereease 0 construction and effectiveness of acof and facing the liquid-inlet pipe leading tion. The majorportion of the interior of from the reservo r above; The top of this the tower is provided with staggered bafllewall is at'a level higher than the discharge end plates over which the lime-water takes a sinuous course in its downward flow. At the top'of the tower and supplying the li uid to these bafiie-plates is a reservoir in w ich is 'maintained a considerable head of lime Water, there being provided a suitable liquidinlet for this reservoir.

of this pipe, and cense uently forms a liquid seal for preventing t e gas from flowing through this pipe into the reservoir and causing it to ass through thessiphon-shaped pipe provide for its eduction intosaid reservoir. The apparatus and mode of its operation are rendered apparent by the accompanying d'rawings,-in conjunction with the following description, and in said drawings Figures 1 and 2 are vertical sectionallvie'ws through the tower-like ap centrally thcrethrough an each other.- Figs. 3 and 4 are horizontal sectil onal views as taken on the lines 3 3 and 4 4,

Suitable connection reservoir and the main portion of the interior of the tower, this connection being of such naturethat a considerable de th of liquid is at all times maintainedin t e reservoir. This provision of a unitary tower structure. comprising in its upper portion a liquid-reservoir and therebeneath a region for causing, the descending at right angles to or ONE-THIRD afiie-plates.disposed in series beneath said in contact of apparatus at once extremely simp e in the asisprefe h a siphon-shaped pipe.

aratus on planes G urea therewithin, the lime-water havil'lg In thedrawings, A represents a tower which may be advantageously of rectangulal' eross sectlonal fol-n1 composed of any su1t- 111g of paper-pulp.

able material, whether wood, concrete, ma-

3 sonry, or otherwise, and having a height of from fifty to one hundred feet, more or less,

. according to requireinen s. i

The'tower has a top wall a, a bottom-closing wall 6, and in its upper portion suitably 1 0 below the top wall a another wall or partition 1, whereby an upper chamber B is created, in which may be maintained a body or head" oi lime-water, (milk of lime, as it is sometimes called,) which is supplied thereinto by the lime-water-inlet pipe C, understood as leading from a suitable source of supply and having a valveffor regulating the inllow.

heading into the lower portion of the tower, preferably somewhatabove the bottom thereof, is a conduit D for the cooled fumes of burnt sulfur, (sulfur dioxid,) a1'id leading from the lower portion of the space 'within the tower below the point of inlet communication of the sulfur-gas conduit is a disc]iarge-co'nduit E. 7

Leading from the aforesaid upper chamber B at apoint somewhat above the bottom (I of such chmnber is a pipe or conduit F, vertioallvarranged and having upper and lower terminal bends, the upper one connecting into the chamber B, as aforesaid, and the lower one connecting into the space within an upper portion of the tower, but belowthc bottom ofsai1l chamber B.

Between the lower end of the pipe F, cominunicating into the upper portion of they tower-chamber and the point ol" GUlTlllllUllOz'L- tion into the lower portion of the tower-space of the sulfur-gas inlet 1), are a plurality of bathe-plates or rillles y g, the same having edge-supports at opposite sides of the towerwall and alternately edgewise oppositely terminating to leave the spaces [L h, as shown,

7 whereby the course for the descending limereaclnng the portion of the tower-space water delivered from the head thereof in the upper chamber B onto the upper one of the baffle-plates is tortuous or sinuous, and whereby the dowi'iwardly gravitativcly inevi in; |i|new:1ter will be distributed or spread 5 in. its zigzag course quite thoroughly over the surfaces of the balllos and throughout great area within the vertical elr mgated space in the 'singfrom the lower 1 portion of thetower and nrmessurily hav- .ing a sinuous or zurzag course from one side to the otherthroug'h the spaces/1 and between the bullies or rillles is also thoroughly spread or distributed throughout thev ton'or-cl|aln ber, encountering in substantiallyall of the the manner of descent stated, resulting in the lirhcwater absorbing and becoming l.hor I discharging into the tower interior therebeou'ghly impregnated upto its potentiality therefor with the sullurgas.

The product r -b1sulfitc ll([Ll(JI', or paperjet pipe j, having its delivery-nozzle y makers acid-thus made nay be drawn ofi through the outlet-pipe E into a tank or otherwise to be availaole for use in the mali- 'lactory results; but'a greater number or all of the battles may be horizontally arranged or they may be arranged inclined, accordingly as a retarded or comparatively rapid descent of the lime-water is desired. v

The top balile-plate g is provided with an upstanding wall 9', which extends across the plate parallel to its free edge, being disposed facing the lower end of the pipe 1 As this wall rises above such end ofthe pipe there is formed a liquid seal at the rear portion of this plate, which ell'ectually prevents the upflowing gas fronr taking the wrong course to the reservoir B.

A siphon-shaped pipe G connects the upper inclosed chai'nbcr B with the portion of the space in the tower near and below the bottom of such chamber, the return bent or U-shaped portion of this pipe G rising above the level atwhich the lime-water would ever be maintained in the chamber B, and the part i of this siphon-shaped pipe may enter the chamber below the normal lime-water level or above the same J represents a suction-pipe having communication with the upper portion of the chamber B, through which a comparatively gentle suctionis maintained by any suitable means, that herein indicated being a steamupwardly directed in the suction-pipe J.

The object of the suction-pipe J and the siphon-shaped pipe G is to aiford means for causing an upward progression of any rem;- nants or surplus of the sulfur-gas (which on above the highest baiiies may not have be come absorbed by the falling lime-water), within and to be absorbed by the head of lime-water in the upper chamber B. in the tower.

ll claiin- 1. A gas-absorption apparatus consisting of a tower, suita blo gas-inlet and liquid-millet in tl'relower portion thereof and suitable liquid-inlet and gas-outlet in the upper portion thereof, a partition extendingacross the interior of the tower near the upper end thereof but below said liquid-inlet and gas outlet and constituting the upper portion of the tower interior as a liquid-reservoir, a li uid-conduit leading from said reservoir at I to a point considerably above said partition and neath, a vertical series ol staggered overtition extending completely'across the interior interior beneath said partition in position to receive the discharge from said conduit, and a pipe distinct from said conduit for conducting the risin gas through the liquid in said reservoir beiore escaping throughthe gasoutlet. I

"2. -A gas-absorption apparatus consisting of a-tower, suitable gas-inlet and-liquid-outlet at the base and suitable liquid-inlet and'gasoutlet at the top thereof, an imperforate parof the tower near the up er end thereof but below said liquid inl et, gafs outlefithu's constituting the upper p ortlon' of the tower interi or as a liquid-reser voir, 'a-verticalseries of staggered overlapping baffle-plates occupycase in the Patent O fiice.

[SEAL.]

No. 846,499, granted March 12, 1907,'npon the application'of John Oarhpbell Murray, of Bangor, M aine for an improvement in v was erroneously written and printed George C. have been w-rittenand printed George E. Crafts; and that th be read with this correction therein that the s Signed and sealed this 9th day of April, A. 1)., 1907.

gas-outlet at the top thereof, an imperforate partition extending completely across the interior of the tower hear of but below said liquid-inlet and gas-outlet, thus constituting the up er portion of the tower interior as a liquid-reservoir, a vertical series of staggered overlapping baflieplates occupying the tower inter or beneath said partitfin, said reservoir at a point considerably above the partition and discharging onto the series of baflie-plates therebeneath, asiphon-shaped as-eonduit leading fromben'eath and ada liquid-conduit leading from the upper end thereacent said partition and opening into the reservoir at a point below the upper end of the liquid-conduit, and an upright wall rising from the top b ffle-plate to a point above the discharge end of the liquid-conduit and ex 'tending from-wall: to Wall of the tower par- :allel to the free ed e of the plate and facing said end of the con uit.

'Signed by me at Bangor, Maine,

presence of two subscribing witnesses.

JOHN CAMPBELL M'URRAYp Witnesses:

WALTER the E HOGAN,

i BLPAL EB.

E. B. MOORE,

Acting Commissioner of Patents.

"jA pparatus for Making Bisul fite Liquors,

It is hereby'certified that the narneof the first-mentioned assignee inLettel-s Ratent Crafts, whereas said name should e said Letters Patent should I ame rnay conform to the record of the tition extending completely'across the interior interior beneath said partition in position to receive the discharge from said conduit, and a pipe distinct from said conduit for conducting the risin gas through the liquid in said reservoir beiore escaping throughthe gasoutlet. I

"2. -A gas-absorption apparatus consisting of a-tower, suitable gas-inlet and-liquid-outlet at the base and suitable liquid-inlet and'gasoutlet at the top thereof, an imperforate parof the tower near the up er end thereof but below said liquid inl et, gafs outlefithu's constituting the upper p ortlon' of the tower interi or as a liquid-reser voir, 'a-verticalseries of staggered overlapping baffle-plates occupycase in the Patent O fiice.

[SEAL.]

No. 846,499, granted March 12, 1907,'npon the application'of John Oarhpbell Murray, of Bangor, M aine for an improvement in v was erroneously written and printed George C. have been w-rittenand printed George E. Crafts; and that th be read with this correction therein that the s Signed and sealed this 9th day of April, A. 1)., 1907.

gas-outlet at the top thereof, an imperforate partition extending completely across the interior of the tower hear of but below said liquid-inlet and gas-outlet, thus constituting the up er portion of the tower interior as a liquid-reservoir, a vertical series of staggered overlapping baflieplates occupying the tower inter or beneath said partitfin, said reservoir at a point considerably above the partition and discharging onto the series of baflie-plates therebeneath, asiphon-shaped as-eonduit leading fromben'eath and ada liquid-conduit leading from the upper end thereacent said partition and opening into the reservoir at a point below the upper end of the liquid-conduit, and an upright wall rising from the top b ffle-plate to a point above the discharge end of the liquid-conduit and ex 'tending from-wall: to Wall of the tower par- :allel to the free ed e of the plate and facing said end of the con uit.

'Signed by me at Bangor, Maine,

presence of two subscribing witnesses.

JOHN CAMPBELL M'URRAYp Witnesses:

WALTER the E HOGAN,

i BLPAL EB.

E. B. MOORE,

Acting Commissioner of Patents.

"jA pparatus for Making Bisul fite Liquors,

It is hereby'certified that the narneof the first-mentioned assignee inLettel-s Ratent Crafts, whereas said name should e said Letters Patent should I ame rnay conform to the record of the It is hereby certified that the narne of the first-mentioned aesignee in Letters Patent No. 846,499, granted March 12, 1907, upon the application of John Caihpbell Murray, of Bangor, Maine, for an improyeinent in fAppamtus for Making Bisulfite Liquors, was erroneously written and printed George C. Crafts, whereas said name should have been written and printed George E. Crafts; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent O ifice.

Signed and sealed this 9th day of April, A. D.. 1907.

E. B. MOORE,

Acting Commissioner of Patents.

[SEAL] 

